CN203249837U - In-situ torsion test platform for mechanical performance of precision material - Google Patents
In-situ torsion test platform for mechanical performance of precision material Download PDFInfo
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- CN203249837U CN203249837U CN 201320253407 CN201320253407U CN203249837U CN 203249837 U CN203249837 U CN 203249837U CN 201320253407 CN201320253407 CN 201320253407 CN 201320253407 U CN201320253407 U CN 201320253407U CN 203249837 U CN203249837 U CN 203249837U
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Abstract
The utility model relates to an in-situ torsion test platform for mechanical performance of precision material, and belongs to the field of machinery. A torsional moment loading mechanism loads torsional moment to one end of an active clamp, and loads the torsional moment to a test workpiece; one end of a passive clamp is mounted on precision guide rail sliding blocks, and has one degree of freedom in the axial direction of the test workpiece; a precision torsional moment sensor is mounted at the end of the passive clamp; two belt wheels are mounted on the test workpiece, angles of rotation on the two sides of the workpiece are respectively transmitted to two precision angular displacement sensors through belts, angular displacement signals are fed back to a detecting system, and an absolute angle of rotation in the labeled length of the workpiece is calculated, so that detection precision of angular displacement in the torsion test is remarkably improved, adverse impact on measuring accuracy is greatly reduced, electromagnetic compatibility and vacuum compatibility of the test device and an electron microscope working cavity are realized, in-situ micro-nano torsion mechanics testing of material is realized, and a better method is provided for testing torsion mechanics properties of material in a micro-nano scale.
Description
Technical field
The utility model relates to the fields such as material science, ultraprecise processing, solid mechanics, and precise materials Micro Mechanical Properties original position is reversed test platform, be that a kind of volume is little, delicate structure can be used for the micro-nano device that reverses Mechanics Performance Testing of precise materials.By the utility model, can under the observation of all kinds of Image-forming instruments, carry out original position to test specimen and reverse test, microdeformation and the damage process of material are carried out home position observation.This device will have preferably application prospect in fields such as material science, ultraprecise processing, solid mechanics.
Background technology
Original position micro nanometer mechanics measuring technology is the cutting edge technology that grew up in recent years, is subject to showing great attention to of national governments and research institution.The micro-nano mechanics measuring technology of reversing has and can carry out the many advantages that original position is reversed test and microdeformation and the damage process of material are carried out home position observation to test specimen under the observation of all kinds of Image-forming instruments.Reverse the mechanics measuring technology than tradition, the micro-nano mechanics measuring technology of reversing is grasped by the researchist of minority at present only and is used, main cause be this Technology Need when satisfying high measuring accuracy, guarantee testing tool miniaturization and with the compatibility of in-situ monitoring equipment.At present the micro-nano mechanical test that reverses mainly concentrates in transmission electron microscope (TEM) and the scanning electron microscope (SEM) and carries out, both has very limited working cavity, and need to guarantee that the Electro Magnetic Compatibility of proving installation and working cavity and vacuum are compatible, these reasons have limited the micro-nano fast development of reversing the mechanics measuring technology just.All in all, research high precision, large test specification, the micro-nano mechanics test device that reverses still is challenging work cheaply, also is the work of a urgency simultaneously.
Summary of the invention
The purpose of this utility model is to provide a kind of precise materials Micro Mechanical Properties original position to reverse test platform, has solved the problem that prior art exists.For realizing that the volume micro-nano device that reverses Mechanics Performance Testing of precise materials that can be used for little, delicate structure provides a kind of available solutions.By the proving installation that the utility model provides, can realize that the Electro Magnetic Compatibility of proving installation and Electronic Speculum working cavity and vacuum are compatible, promote the micro-nano development of reversing the mechanics measuring technology of original position.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
Precise materials Micro Mechanical Properties original position is reversed test platform, mainly comprises torque loading mechanism, test specimen clamping device, moment of torsion precision measurement mechanism, corner precision measurement mechanism; Described torque loading mechanism is installed on pedestal I 1 and the pedestal II 40, pedestal I 1 and pedestal II 40 are fixedly installed togather by base seat support I 41 and base seat support II 46, torque loading mechanism slows down, commutates by the two-stage worm and gear, and moment of torsion is carried in test piece; The test specimen clamping device comprises piece fixture I, II 21,29, is respectively drive end and Partner; Moment of torsion precision measurement mechanism is fixed on an end of piece fixture II 29, and integral installation is on anchor clamps mount pad 32; Corner precision measurement mechanism is fixed on the guide rail slide block I, II 42,43 of test piece 24 1 side precise guide rail III 39.
Described torque loading mechanism comprises accurate drive motor 2, motor support base 3, spring coupling 4, worm screw I, II 6,13, worm gear I, II 11,15, accurate drive motor 2 is fixedly mounted on the pedestal I 1 by motor support base 3, and its output shaft connects by spring coupling 4 with worm screw I 6; Worm screw I 6 is installed on the pedestal I 1 by bearing spider I 5, bearing spider II 7, worm shaft I 8 and bearing 9, and forms first order deceleration and commutation with worm gear I 11; In like manner form second level deceleration and commutation by worm screw II 13 and worm gear II 15, worm screw II 13 and worm gear I 11 are installed on bearing spider III and the IV 12,14 by worm-wheel shaft II 10, and bearing spider III and IV 12,14 are fixedly mounted on the pedestal I 1; Double reduction and commutation, the first order adopts less reduction gear ratio, and adopt than the big retarding ratio second level, and the precision that loads to improve moment of torsion reduces the torque loading mechanism physical dimension; Moment of torsion is transferred on the piece fixture I 21 by worm-wheel shaft III 16.
Described test specimen clamping device comprises anchor clamps bearing spider 18, piece fixture I, II 21,29, end cap 30, piece fixture I 21 connects with second level deceleration output shaft, be worm-wheel shaft II 16, both are installed on the pedestal II 40 by precision bearing, anchor clamps bearing spider 18 and bearing (ball) cover 17 and screw; Piece fixture II 29 directly fixedly mounts the transfer of torque signal with accurate torque sensor 31.
Described moment of torsion precision measurement mechanism comprises accurate torque sensor 31, anchor clamps mount pad 32, precise guide rail I, II 33,37 and guide rail slide block III, IV 44,45, front end at accurate torque sensor 31, connect with piece fixture II 29 by end cap 30 and screw, test piece 24 suffered moments of torsion pass to accurate torque sensor 31 by piece fixture II 29; In the rear end of accurate torque sensor 31, be installed on the anchor clamps mount pad 32 by screw, anchor clamps mount pad 32 is fixed on guide rail slide block III, the IV 44,45; Precise guide rail I, II 33,37 parallel placements are fixed by screws on the pedestal II 40.
Described corner precision measurement mechanism comprises angular displacement sensor I, II 20,36, outer corner measurement belt wheel I, II, III, IV 22,26,27,34, driving-belt I, II 23,28, precise guide rail III 39 and guide rail slide block I, II 42,43, by screw outer corner measurement belt wheel I 22 is installed respectively at the demarcation testing length two ends of test piece 24 and outer corner measurement belt wheel III 27, two belt wheels link to each other with outer corner measurement belt wheel IV 34 with outer corner measurement belt wheel III 27 respectively with driving-belt II 28 by driving-belt I 23; Outer corner measurement belt wheel III 27 and outer corner measurement belt wheel IV 34 are installed on angular displacement sensor I, the II 20,36 separately; Angular displacement sensor I 20 is installed on the guide rail slide block II 43 by angular displacement sensor bearing I 25 and screw; In like manner, angular displacement sensor II 36 is installed on the guide rail slide block I 42 by angular displacement sensor bearing II 35; Precise guide rail III 39 is installed on the pedestal II 40 by screw; Fixed support I, II 19,38 are fixedly mounted on guide rail slide block I, the II 42,43; Be used for guide rail slide block I, II 42,43 being fixed on precise guide rail III 39 temporarily.
Described precise materials Micro Mechanical Properties original position is reversed test platform and can be placed the scanning electron microscope cavity, has good compatibility with Electronic Speculum.
The beneficial effects of the utility model are: small volume structure is compact, and the outer corner measurement error is little, can place the scanning electron microscope cavity, has good compatibility with Electronic Speculum.Can under the observation of all kinds of Image-forming instruments, carry out original position to test specimen and reverse test, microdeformation and damage process to material are carried out home position observation, and can gather load/displacement signal, thereby disclose mechanical characteristic and the micromechanism of damage of material under micro-nano-scale, promote the development of the technology such as new material new process, material science, ultraprecise processing, solid mechanics.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, and illustrative example of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.
Fig. 1 is perspective view of the present utility model;
Fig. 2 is that master of the present utility model looks schematic diagram;
Fig. 3 is schematic top plan view of the present utility model;
Fig. 4 is that schematic diagram is looked on a left side of the present utility model.
Among the figure: 1. pedestal I, 2. accurate drive motor, 3. motor support base, 4. spring coupling, 5. bearing spider I, 6. worm screw I, 7. bearing spider II, 8. worm shaft I, 9. bearing, 10. worm-wheel shaft II, 11. worm gear I, 12. bearing spider III, 13. the worm screw II, 14. bearing spider IV, 15. worm gear II, 16. the worm-wheel shaft III, 17. bearing (ball) covers, 18. anchor clamps bearing spiders, 19. fixed support I, 20. the angular displacement sensor I, 21. piece fixture I, 22. outer corner measurement belt wheel I, 23. driving-belt I, 24. test piece, 25. angular displacement sensor bearing I, 26. outer corner measurement belt wheel II, 27. outer corner measurement belt wheel III, 28. the driving-belt II, 29. piece fixture II, 30. end caps, 31. accurate torque sensor, 32. the anchor clamps mount pad, 33. precise guide rail I, 34. outer corner measurement belt wheel IV, 35. angular displacement sensor bearing II, 36. the angular displacement sensor II, 37. precise guide rail II, 38. fixed support II, 39. precise guide rail III, 40. the pedestal II, 41. base seat support I, 42. guide rail slide block I, 43. guide rail slide block II, 44. the guide rail slide block III, 45. guide rail slide block IV, 46. base seat support II.
Embodiment
Further specify detailed content of the present utility model and embodiment thereof below in conjunction with accompanying drawing.
To shown in Figure 4, precise materials Micro Mechanical Properties original position of the present utility model is reversed test platform referring to Fig. 1, and its structure mainly is comprised of torque loading mechanism, test specimen clamping device, moment of torsion precision measurement mechanism, corner precision measurement mechanism etc.
The loading of moment of torsion realizes by accurate drive motor 2 and Worm Wheel System chain, concrete embodiment is, connect worm shaft I 8 by the accurate drive motor 2 that is installed on the pedestal I 1 by spring coupling 4, drive worm screw I 6 and worm gear I 11, by being installed in the worm-wheel shaft II 10 on bearing spider III 12 and the bearing spider IV 14, and worm screw II 13 and worm gear II 15, through the commutation of worm and gear, slow down and the increase moment of torsion, worm gear II 15 passes to piece fixture I 21 with moment of torsion.The upper part of torque loading mechanism and instrument is arranged in two-layer by base seat support II 46 and base seat support I 41, structure is through gathering.In implementation process, workpiece is carried out the loading of stable precision by the driving of accurate drive motor 2.
The motion of test specimen clamping device and moment of torsion precision measurement mechanism is divided into two kinds: a kind of is that the active torque of piece fixture I 21 loads motion, and a kind of is the rotation of piece fixture II 29 and accurate torque sensor 31 and along the rectilinear motion of test specimen axis direction.Embodiment is that worm gear II 15 passes to piece fixture I 21 with moment of torsion and loads on test specimen one end, realizes that the active torque of piece fixture I 21 loads motion.Moment of torsion passes to piece fixture II 29 by workpiece, makes piece fixture II 29 produce small distortion and rotates.Test specimen axial property under the torsional load effect can change, and cause the variation of axial dimension, produce rectilinear motion thereby drive the piece fixture II 29 that is installed on guide rail slide block III 44, the guide rail slide block IV 45 in precise guide rail I 33 and precise guide rail II 37.Accurate torque sensor 31 is installed between anchor clamps mount pad 32 and the piece fixture II 29, the moment of torsion that is carried on the workpiece passes to accurate torque sensor 31 by piece fixture II 29, and because accurate torque sensor 31 is installed on precise guide rail I 33 and the precise guide rail II 37, therefore eliminated because of workpiece spindle to variation on the impact of torque measurement, improve the measuring accuracy of moment of torsion.
The motion of corner precision measurement mechanism mainly is the transmission of belt wheel.Embodiment is, by screw outer corner measurement belt wheel I 22 is installed respectively at the demarcation testing length two ends of test piece 24 and outer corner measurement belt wheel III 27, two belt wheels link to each other with outer corner measurement belt wheel IV 34 with outer corner measurement belt wheel III 27 respectively with driving-belt II 28 by driving-belt I 23.Outer corner measurement belt wheel III 27 and outer corner measurement belt wheel IV 34 are connected in respectively on the angular displacement sensor I 20 that is fixed on angular displacement sensor bearing I 25 and are fixed on the angular displacement sensor II 36 of angular displacement sensor bearing II 35.The angular displacement at part calibration length two ends is just surveyed by angular displacement sensor I 20 and angular displacement sensor II 36, thereby obtains the absolute angle displacement of calibrated length, has improved greatly the measuring accuracy of angular displacement.And angular displacement sensor I 20 and angular displacement sensor II 36 are installed in respectively on guide rail slide block I 42 and the guide rail slide block II 43, have reduced because of the impact of angular displacement sensor position deviation on measuring accuracy.Fixed support I 19 and fixed support II 38 are mainly used in temporary fixed guide rail slide block I 42 and guide rail slide block II 43, make it not mobile.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All any modifications that the utility model is done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. a precise materials Micro Mechanical Properties original position is reversed test platform, it is characterized in that: comprise torque loading mechanism, test specimen clamping device, moment of torsion precision measurement mechanism, corner precision measurement mechanism; Described torque loading mechanism is installed on pedestal I, the II (1,40), pedestal I (1) and pedestal II (40) are fixedly installed togather by base seat support I (41) and base seat support II (46), torque loading mechanism slows down, commutates by the two-stage worm and gear, and moment of torsion is carried in test piece; The test specimen clamping device comprises piece fixture I, II (21,29), is respectively drive end and Partner; Moment of torsion precision measurement mechanism is fixed on an end of piece fixture II (29), and integral installation is on anchor clamps mount pad (32); Corner precision measurement mechanism is fixed on the guide rail slide block I, II (42,43) of test piece (24) one side precise guide rail III (39).
2. precise materials Micro Mechanical Properties original position according to claim 1 is reversed test platform, it is characterized in that: described torque loading mechanism comprises accurate drive motor (2), motor support base (3), spring coupling (4), worm screw I, II (6,13), worm gear I, II (11,15), accurate drive motor (2) is fixedly mounted on the pedestal I (1) by motor support base (3), and its output shaft connects by spring coupling (4) with worm screw I (6); Worm screw I (6) is installed on the pedestal I (1) by bearing spider I (5), bearing spider II (7), worm shaft I (8) and bearing (9), and forms first order deceleration and commutation with worm gear I (11); In like manner form second level deceleration and commutation by worm screw II (13) and worm gear II (15), worm screw II (13) and worm gear I (11) are installed on bearing spider III and the IV (12,14) by worm-wheel shaft II (10), and bearing spider III and IV (12,14) are fixedly mounted on the pedestal I (1); Double reduction and commutation, the first order adopts less reduction gear ratio, and adopt than the big retarding ratio second level, and the precision that loads to improve moment of torsion reduces the torque loading mechanism physical dimension; Moment of torsion is transferred on the piece fixture I (21) by worm-wheel shaft III (16).
3. precise materials Micro Mechanical Properties original position according to claim 1 is reversed test platform, it is characterized in that: described test specimen clamping device comprises anchor clamps bearing spider (18), piece fixture I, II (21,29), end cap (30), piece fixture I (21) connects with second level deceleration output shaft, be worm-wheel shaft II (16), both are installed on the pedestal II (40) by precision bearing, anchor clamps bearing spider (18) and bearing (ball) cover (17) and screw; Piece fixture II (29) directly fixedly mounts with accurate torque sensor (31), the transfer of torque signal.
4. precise materials Micro Mechanical Properties original position according to claim 1 is reversed test platform, it is characterized in that: described moment of torsion precision measurement mechanism comprises accurate torque sensor (31), anchor clamps mount pad (32), precise guide rail I, II (33,37) and guide rail slide block III, IV (44,45), front end in accurate torque sensor (31), connect with piece fixture II (29) by end cap (30) and screw, the suffered moment of torsion of test piece (24) passes to accurate torque sensor (31) by piece fixture II (29); Rear end in accurate torque sensor (31) is installed on the anchor clamps mount pad (32) by screw, and anchor clamps mount pad (32) is fixed on guide rail slide block III, the IV (44,45); Precise guide rail I, the parallel placement of II (33,37) are fixed by screws on the pedestal II (40).
5. precise materials Micro Mechanical Properties original position according to claim 1 is reversed test platform, it is characterized in that: described corner precision measurement mechanism comprises the angular displacement sensor I, II (20,36), outer corner measurement belt wheel I, II, III, IV (22,26,27,34), the driving-belt I, II (23,28), precise guide rail III (39) and guide rail slide block I, II (42,43), demarcation testing length two ends in test piece (24) are equipped with outer corner measurement belt wheel I (22) and outer corner measurement belt wheel III (27) by screw respectively, and two belt wheels link to each other with outer corner measurement belt wheel IV (34) with outer corner measurement belt wheel III (27) respectively with driving-belt II (28) by driving-belt I (23); Outer corner measurement belt wheel III (27) and outer corner measurement belt wheel IV (34) are installed on angular displacement sensor I, the II (20,36) separately; Angular displacement sensor I (20) is installed on the guide rail slide block II (43) by angular displacement sensor bearing I (25) and screw; In like manner, angular displacement sensor II (36) is installed on the guide rail slide block I (42) by angular displacement sensor bearing II (35); Precise guide rail III (39) is installed on the pedestal II (40) by screw; Fixed support I, II (19,38) are fixedly mounted on guide rail slide block I, the II (42,43); Be used for temporary fixed guide rail slide block I, II (42,43) in precise guide rail III (39).
According to claim 1 in 5 the described precise materials Micro Mechanical Properties of any one original position reverse test platform, it is characterized in that: described precise materials Micro Mechanical Properties original position is reversed test platform and can be placed the scanning electron microscope cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320253407 CN203249837U (en) | 2013-05-10 | 2013-05-10 | In-situ torsion test platform for mechanical performance of precision material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320253407 CN203249837U (en) | 2013-05-10 | 2013-05-10 | In-situ torsion test platform for mechanical performance of precision material |
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| Publication Number | Publication Date |
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| CN203249837U true CN203249837U (en) | 2013-10-23 |
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| CN 201320253407 Withdrawn - After Issue CN203249837U (en) | 2013-05-10 | 2013-05-10 | In-situ torsion test platform for mechanical performance of precision material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293066A (en) * | 2013-05-10 | 2013-09-11 | 吉林大学 | Precision material micro mechanical property in-situ torsion testing platform |
| CN110823683A (en) * | 2019-11-11 | 2020-02-21 | 颍上晶宫绿建节能建筑有限责任公司 | Precast concrete spare detection device |
-
2013
- 2013-05-10 CN CN 201320253407 patent/CN203249837U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293066A (en) * | 2013-05-10 | 2013-09-11 | 吉林大学 | Precision material micro mechanical property in-situ torsion testing platform |
| CN110823683A (en) * | 2019-11-11 | 2020-02-21 | 颍上晶宫绿建节能建筑有限责任公司 | Precast concrete spare detection device |
| CN110823683B (en) * | 2019-11-11 | 2022-09-30 | 颍上晶宫绿建节能建筑有限责任公司 | Precast concrete spare detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131023 Effective date of abandoning: 20150408 |
|
| RGAV | Abandon patent right to avoid regrant |